Celanese Is The Chemistry Inside Innovation™ - A Brand Delivering Value Through Collaboration, Technology And Solutions

DALLAS, SHANGHAI and FRANKFURT — October 1, 2013 — As customer needs diversify - and the complexity
of their solutions increase - identifying the right partners and the right solutions can be the
difference between product success or failure.

Recognizing this need, Celanese, a global technology and specialty materials company, is
simplifying its brand architecture to capture in a single brand the full suite of Celanese
technology, resources, products and solutions. This change moves Celanese toward achieving its
vision of becoming the first-choice chemistry solution source for its customers.

"Our vision represents Celanese's depth and breadth of industry and chemistry knowledge, the
capabilities to innovate for our customers, the dedication to creating value, and a commitment to
partnerships to help our customers succeed," said Mark Rohr, Chairman and Chief Executive Officer.
"We believe the phrase that best describes Celanese is 'The chemistry inside innovation™'."

Becoming 'One Celanese'There are several changes Celanese is making to support this vision and to communicate its
value proposition to customers. Beginning today, Celanese is launching a unified brand that
represents the company's multiple businesses and capabilities.

food ingredients including Sunett® and the Qorus® sweetener system; and

intermediate chemistry products and technologies such as AOPlus®, VAntagePlus® and TCX®
Technology.

"The new Celanese brand reinforces the power of our global organization. The brand also
speaks to our unwavering focus on the safety of our people, plants and products; our commitment to

operations excellence; and the strength of Celanese's talented employees who collaborate with
our customers to develop fresh solutions that solve their most critical needs," said Rohr.

To view elements of the new Celanese brand, including the new Celanese logo, company video
and brochure, go to: www.celanese.com/TheChemistryInsideInnovation.

Introducing The New Celanese Brand At K 2013Celanese and its products and solutions will be showcased at the flagship plastics and rubber
industry event, K 2013, in Dusseldorf, Germany, Oct. 16-23.

"K 2013 is an opportunity to demonstrate our ability to be the first-choice chemistry
solution source for our customers," said Rohr. "We look forward to celebrating our brand launch and
sharing the full breadth of our chemistry, technology and global business expertise at K 2013."

To experience the new Celanese brand at K-Trade Fair 2013, including the Celanese K 2013
website and booth, visit: www.celanese.com/Tradeshows/K-Trade-Fair-2013.aspx